/**
 * Check if an element has a class
 * @param {HTMLElement} ele
 * @param {string} cls
 * @returns {boolean}
 */
export function hasClass(ele: HTMLElement, cls: string) {
  return !!ele.className.match(new RegExp("(\\s|^)" + cls + "(\\s|$)"));
}

/**
 * Add class to element
 * @param {HTMLElement} ele
 * @param {string} cls
 */
export function addClass(ele: HTMLElement, cls: string) {
  if (!hasClass(ele, cls)) ele.className += " " + cls;
}

/**
 * Remove class from element
 * @param {HTMLElement} ele
 * @param {string} cls
 */
export function removeClass(ele: HTMLElement, cls: string) {
  if (hasClass(ele, cls)) {
    const reg = new RegExp("(\\s|^)" + cls + "(\\s|$)");
    ele.className = ele.className.replace(reg, " ");
  }
}

/**
 * @param {string} path
 * @returns {Boolean}
 */
export function isExternal(path: string) {
  const isExternal = /^(https?:|http?:|mailto:|tel:)/.test(path);
  return isExternal;
}

/*
  timestamp: 13位时间戳 | new Date() | Date()
  console.log(dateFormat(1714528800000, 'YY-MM-DD HH:mm:ss'))
  format => YY：年，M：月，D：日，H：时，m：分钟，s：秒，SSS：毫秒
*/
export function dateFormat(
  timestamp: number | string | Date,
  format = "YYYY-MM-DD HH:mm:ss"
): string {
  var date = new Date(timestamp);
  function fixedTwo(value: number): string {
    return value < 10 ? "0" + value : String(value);
  }

  var showTime = format;
  if (showTime.includes("SSS")) {
    const S = date.getMilliseconds();
    showTime = showTime.replace("SSS", "0".repeat(3 - String(S).length) + S);
  }
  if (showTime.includes("YY")) {
    const Y = date.getFullYear();
    showTime = showTime.includes("YYYY")
      ? showTime.replace("YYYY", String(Y))
      : showTime.replace("YY", String(Y).slice(2, 4));
  }
  if (showTime.includes("M")) {
    const M = date.getMonth() + 1;
    showTime = showTime.includes("MM")
      ? showTime.replace("MM", fixedTwo(M))
      : showTime.replace("M", String(M));
  }
  if (showTime.includes("D")) {
    const D = date.getDate();
    showTime = showTime.includes("DD")
      ? showTime.replace("DD", fixedTwo(D))
      : showTime.replace("D", String(D));
  }
  if (showTime.includes("H")) {
    const H = date.getHours();
    showTime = showTime.includes("HH")
      ? showTime.replace("HH", fixedTwo(H))
      : showTime.replace("H", String(H));
  }
  if (showTime.includes("m")) {
    var m = date.getMinutes();
    showTime = showTime.includes("mm")
      ? showTime.replace("mm", fixedTwo(m))
      : showTime.replace("m", String(m));
  }
  if (showTime.includes("s")) {
    var s = date.getSeconds();
    showTime = showTime.includes("ss")
      ? showTime.replace("ss", fixedTwo(s))
      : showTime.replace("s", String(s));
  }
  return showTime;
}
